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Finding the Fourth Proportional to 607,040.40, 910,560.60 and 429,747.60

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Solution

The fourth proportional to 607,040.40, 910,560.60 and 429,747.60 is: 644,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,040.40 : 910,560.60 = 429,747.60 : x
  2. Step 2: Convert to fraction form
    607,040.40/910,560.60 = 429,747.60/x
  3. Step 3: Cross multiply
    607,040.40x = 910,560.60 × 429,747.60
  4. Step 4: Simplify right side
    607,040.40x = 391,311,232,504.56
  5. Step 5: Solve for x
    x = 391,311,232,504.56/607,040.40
  6. Step 6: Final answer
    x = 644,621.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.